Windows Mobile has the third largest smartphone market presence in the U.S., after Research in Motion (RIMM), which controls 41.6 percent of the market, and Apple, which controls 25.3 percent. (See table above; click to enlarge.)

Worth remembering because Microsoft’s (MSFT) portion is far larger than Palm’s share, which fell to 6.1 percent in the December quarter, and Google’s share, which though doubled over the year prior, was still just 5.2 percent.

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